I found these at walmart.com.
They are semi-mountable..it comes with a carrying case that you strap on to the back of your headrest. It even has progressive scan and a 7" screen! (see attached pic )
I didnt want to spend a fortune, and after reading some of the reviews, most people were pleasantly surprised.
Sure, there are much better ones out there..but for the price? No way!
I'm gonna buy two so I dont have to listen to kids fight over it...
Here's a link if you wanna look...
http://www.walmart.com/catalog/produ...30900866002498